Lots of good advice already
What kind of music are you into ? Who are your bass influences ?
The reason I ask this , is that you may ( or probably ) find a beginners lesson on you tube by one of your favourite bass players.You'll definitely get a feee lesson from 'unknown ' but brilliant teachers on there anyhow .
Fwiw, when I first started attempting to play bass I started off with a plectrum . This was about a yea or so before I started going to go to gigs . Then I saw Steve Harris at the music machine / marquee etc and thought I'd better do fingers instead . Troubl is , his style of finger playing is advanced / unique so I was playing out of sync .
Years later I stumbled across Rudy sarzo hot licks video . VHS , way before internet . A little cheesy , but it improved my playing a lot ..
That was before I had proper 1 on 1 tuition ( wish I kept that up ) .
In my latter days while gigging I ended up doing both .
One other thing to mention , is that being relaxed about it all is key . It's very easy to get tense and putting undue pressure on yourself by being annoyed by making mistakes ( if that makes sense) ..